Pump-jack



(No Model.)

P. J. DLWEB.

PUMP JACK.

Patented oct. 25. 1887.

lill

.3 h'll UNITED STATES ArEN'r trici.

EUGENE J. OLIVER, OF SPRINGFIELD, OHIO.

PUMP-JACK.

SPECIFICATION forming part of Letters Patent No. 372.274, dated October25, 1887.

Application filed March 10, 1887. Serial No. 230,450. (No model.)

To all whom t mag/concern:

Be itknown that I, EUGENE J. OLIVER, a citizen of the United States,residing at Springfield, in the countyof Clark and State of Ohio, haveInvented a new and useful Improvement 1n Pump-Jacks, of which thefollowing is such a full, clear, and exact description thereof as willenable any person skilled in the art to make and use the same, referencebeing had to the accompanying drawings, 'forming a part of thisspecication. l

M y invention relates,generally,to tllepumps or piping for wells, andparticularly to devices for lowering said pipesinto the wells orremovingthem therefrom, and is in the nature of im-` provements upon the usualmethod employed therefor.

It consists in employing aheavy base of suitable form, having pivotedthereto a pair of point for attaching or .detaching a portion thereof,and a lever of suitable form to 4act as' a brake in lowering the pipeinto the well, and having a projection formed on said lever, so that itmay also be used to lift the pipe out of the well by attaching a chainAto the pipe and to said projection.

In the drawings, Figure l is a perspective view of my device whenemployed to hold a pipe as a vise for attaching or detaching a partthereof. Fig. 2 is a side elevation, ony a reduced scale, showing thedevice acting as a brake for preventing the too rapid descent of thepipewhen lowering it into the well. Fig. 3 is a side elevation, on areduced scale, showing my invention as arranged to act as a lift ingdevice for removing the pipefrom the Well; and Fig. 4 is a plan View ofthe jaws forholding the pipe, showing the method of forcing themtogether. v

Similar letters refer to like parts iu the several views.

Sofar as I am aware there is at present no device adapted to perform thefunctions which the herein-described device is capable of.

Referring to the drawings, A is a strong metal casting forming the baseof the machine, and

cular end of the slot, is formed a vertical projection, b,upon the topof which are pivoted two jaws, B and C, which have properly-toothedrecesses formed therein at c c for receiving and holding the pipe,similar to a pipe-vise,77 as shown by dotted lines in'Fig. l.

Upon the free end of the jaw `Gis pivoted the yoke D, the closed end ofwhich incloses the free end of the jaw B. This end of the yoke D isprovided with a screw, E, having formed upon its outer end a crank, e,for operating it. The point of the screw E presses against the free endofthe jaw B, thusforcing thetwojaws B and C together and firmly graspingthe pipe, when additional sections of pipe may be screwed upon the pieceheld, or sections removed; or the pipe may be held for cutting off orfor threading, thus dispensing with the use of a special vise for thatwork.

Pivotcd in the slot of the base A is the lever F, which has formed on itthe eccentric segment f, 'the outer edge of which is concaved,4

the pipe being held as shown in Fig. 2 1'. e., between the semicircularend a of the slot in the base A and the concave surface of the eccentricsegment f of the lever F, by 'elevating the outer end of which anydesired amount of pressure may be brought to bear upon the pipe,allowing it to slide slowly through in its descent into the well.

There are several pivot-holes, d cl, in the base A other than thatnecessary in the operations just described. In any one ofthese thepivotbolt g may be placed when using the lever F to raise a pipe out ofawell, as shownin Fig. 3. In this ease a chain, h, is fastened in anyconvenient manner to the pipe (shown in dotted lines) and the upper endattached to the lever F at k. The lever F is pressed4 down andthe piperaised, when it may be grasped by the jaws B O, the lever F againraised, and the 0peration repeated. By changing the pivot-bolt g fromone hole to another in the base A and lever F more or lessleveragemaybeobtained, according to the weight of the pipe to be lifted.

By the mechanism just described I am enabled to provide the mechanicwith a strong, simple, and compact device by which all the work of apipe-vise, of a brake for use in lowering pipe, and a lever for raisingit may be performed. Thus one implement takes the place ofthrec,reducing the number and weight its too rapid descent,Substantially as shown and increasing` the efficiency of the tools andimplements now in use for these purposes. I

Having thus described my inventiomits construction, operation, and uses,what I claim as new, and desire to secure by Letters Patent, is-

l. A Combined tool or implement for use in introducingr or removing thepipe of wells, said implement consisting of a pipe vise having pivotedjaws swinging in a horizontal plane and forced together by a suitablescrew, and a lever forming a brake for use in lowering` the pipe, and soconstructed as to act, in combiuation with a chain orsimilarfastening,as an elevatinglever in raising it, substantially as and forthe purpose shown and described.

2. In a combined tool or implement for use in introducing or removingthe pipe of wells, a pipevise whose jaws open and close horizontally, incombination with a fixed concave surface formed in the base or frame ofsaid implement, and a lever having formed thereon an eccentric adaptedto force thepipe against said concave surface lfor the purpose ofpreventing and described.

3. In an implementfor loweringtliepipeinto a Well and removing ittherefrom, the combination of a pair ofjaws adapted to grasp the pipe, asuitable screw for closing said jaws, a lever pivoted in the frame ofsaid implement, and a chain adapted to be secured to the pipe at thelower end and to the lever at the upper end, substantially as and forthe purposes shown an d described.

41. In a combined implement, (as hereinbefore described, to wit:) havinga pair of jaws adapted to engage and hold the pipe anda lever pivotcd inthe base of said implement, a perforated projection formed on saidlever, and a chain for attachment thereto, the said chain being alsoattached to the pipe in the well for the purpose of raising the same,substantinllyin the manuel' shown and described.

EUGENE J. OLlVER.

\Vitnesses:

OSCAR PnRnIGo,

D. P. MoKiNNnY.

